YASKAWA GA700 Technical Manual page 458

9.5 Drive Specifications
Item
Stops when power loss is longer than 15 ms.
Continues operation if power loss is shorter than 2 s (depending on parameter settings).
Momentary
Note:
Power Loss
• Stop time may be shortened depending on the load and motor speed.
Ride-thru
• Drive capacity will change the continuous operation time. A Momentary Power Loss Recovery Unit is necessary to
continue operation through a 2 s power loss on models 2004 to 2056 and 4002 to 4031.
Heatsink
Thermistor
Overheat
Protection
Braking Resistor Overheat detection for braking resistor (optional ERF-type, 3% ED)
Overheat
Protection
Stall Prevention Stall prevention is available during acceleration, deceleration, and during run.
Electronic circuit protection
Note:
Ground Fault
This protection detects ground faults during run. The drive will not provide protection when:
Protection
• There is a low-resistance ground fault for the motor cable or terminal block
• Energizing the drive when there is a ground fault.
DC Bus Charge
Charge LED illuminates when DC bus voltage is more than 50 V.
LED
Environment
Area of Use Indoors
Power Supply Overvoltage Category III
Open chassis type (IP20): -10°C to +50 °C (14 °F to 122 °F)
Enclosed wall-mounted type (UL Type 1): -10 °C to +40 °C (14 °F to 104 °F)
• Drive reliability is better in environments that do not have wide temperature fluctuations.
Ambient
• When installing the drive in an enclosure, use a cooling fan or air conditioner to keep the internal air temperature in
Temperature
the permitted range.
• Do not let the drive freeze.
• To install the drive in areas with ambient temperatures 40 °C to 60 °C (104 °F to 140 °F), derate the output current
and output voltage.
95% RH or less
Humidity
Do not let condensation form on the drive.
Storage -20 °C to +70 °C (-4 °F to +158 °F) (short-term temperature during transportation)
Temperature
Pollution degree 2 or less
Install the drive in an area without:
• Oil mist, corrosive or flammable gas, or dust
• Metal powder, oil, water, or other unwanted materials
Surrounding
Area
• Radioactive materials or flammable materials, including wood
• Harmful gas or fluids
• Salt
• Direct sunlight
1000 m (3281 ft.) maximum
Note:
Derate the output current by 1% for each 100 m (328 ft.) to install the drive in altitudes between 1000 m to 3000 m
(3281 ft. to 9843 ft.).
Altitude
It is not necessary to derate the rated voltage in these conditions:
• Installing the drive at 2000 m (6562 ft.) or lower
• Installing the drive between 2000 m to 3000 m (6562 ft. to 9843 ft.) and grounding the neutral point on the power
supply.
Contact Yaskawa or your nearest sales representative when not grounding the neutral point.
458
Specifications
Table 9.11 Environment
Conditions
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual